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Proceedings Paper

Influence of instrumental noise and defocus on the DIMM
Author(s): Z. Benkhaldoun; Y. Hach
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Paper Abstract

The instrumental noise is an important factor in any measurement. In order to evaluate the amount of seeing introduced by the instrumental noise, we have conducted an experiment using an artificial light source as a star. In addition, we present a study of the defocus effect on the DIMM results. The instrumental noise variance was measured in the laboratory for different states of defocusing. In this paper we will present the results of these various experiments.

Paper Details

Date Published: 9 July 2008
PDF: 7 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70147D (9 July 2008); doi: 10.1117/12.789227
Show Author Affiliations
Z. Benkhaldoun, LPHEA, Univ. Cadi Ayyad (Morocco)
Y. Hach, LPHEA, Univ. Cadi Ayyad (Morocco)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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